Home / 4,689,971.80-7,034,957.70-4,428,698.20

Finding the Fourth Proportional to 4,689,971.80, 7,034,957.70 and 4,428,698.20

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Solution

The fourth proportional to 4,689,971.80, 7,034,957.70 and 4,428,698.20 is: 6,643,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689,971.80 : 7,034,957.70 = 4,428,698.20 : x
  2. Step 2: Convert to fraction form
    4,689,971.80/7,034,957.70 = 4,428,698.20/x
  3. Step 3: Cross multiply
    4,689,971.80x = 7,034,957.70 × 4,428,698.20
  4. Step 4: Simplify right side
    4,689,971.80x = 31,155,704,503,066.14
  5. Step 5: Solve for x
    x = 31,155,704,503,066.14/4,689,971.80
  6. Step 6: Final answer
    x = 6,643,047.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.